Answer:
The given method of reducing cognitive dissonance is known as self-affirmation.
Explanation:
Cognitive dissonance is a form of mental discomfort experienced by an individual, with two or more contradictory ideas or beliefs.
The theory of self-affirmation discusses the methods by which an individual adapts to the situations, that threatens their own ideas or beliefs, by reflecting on values that are personally relevant. Self-affirmation can help an individual to manage the stress or discomfort and improves their mental health and performance.
Therefore, the given method of reducing cognitive dissonance is known as self-affirmation.